<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="app">
        <input type="text" @input='handleInput'>
        <button @click='handleClick'>点击显示内容</button>
    </div>

    <script src="./js/vue.js"></script>
    <script>
        const vm = new Vue({
            el: "#app",
            data: {
                inputValue: ''
            },
            methods: {
                handleInput(e) {
                    this.inputValue = e.target.value
                },
                handleClick() {
                    console.log(this.inputValue)
                }
            }
        })
    </script>
</body>

</html>